September 12 said to be iPhone 8 day
https://www.cnet.com/news/iphone-8-reportedly-coming-september-12/
The paper reports that Apple will unveil three new iPhones that day, citing anonymous sources "familiar with the matter." Apple may host the event at the Steve Jobs Theater on its new Apple Park campus according to the story.
The September 12 date was previously reported, and aligns with the traditional early September window Apple has used to announce new iPhones over the past several years.